diff mbox series

[v4,2/3] wifi: brcmfmac: Fix for when connect request is not success

Message ID 20221024085215.27616-3-ian.lin@infineon.com (mailing list archive)
State Accepted
Commit 52617bee3718d1315159569973d35107ea6b9a34
Delegated to: Kalle Valo
Headers show
Series Fix connect/p2p issue series | expand

Commit Message

Ian Lin Oct. 24, 2022, 8:52 a.m. UTC 
From: Wataru Gohda <wataru.gohda@cypress.com>

Currently brcmfmac is expecting to be set for both
BRCMF_VIF_STATUS_EAP_SUCCESS and BRCMF_VIF_STATUS_EAP status bit based
on dongle event and those bits are cleared to complete connect request
successfully.

But when connect request is finished unsuccessfully, either
BRCMF_VIF_STATUS_EAP_SUCCESS / BRCMF_VIF_STATUS_EAP bits are not
cleared depending on how the connect fail event happens. These status
bits are carried over to following new connect request and this will lead
to generate below kernel warning for some case. Worst case status
mismatch happens between dongle and wpa_supplicant.

WARNING: ../net/wireless/sme.c:756 __cfg80211_connect_result+0x42c/0x4a0 [cfg80211]

The fix is to clear the BRCMF_VIF_STATUS_EAP_SUCCESS /
BRCMF_VIF_STATUS_EAP bits during the link down process and add to call
link down process when link down event received during
BRCMF_VIF_STATUS_CONNECTING as well as BRCMF_VIF_STATUS_CONNECTED
state.

Signed-off-by: Wataru Gohda <wataru.gohda@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Signed-off-by: Ian Lin <ian.lin@infineon.com>
---
 .../broadcom/brcm80211/brcmfmac/cfg80211.c     | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 3f2336062217..14cbc30a3229 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -1683,6 +1683,8 @@  static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason,
 					      locally_generated, GFP_KERNEL);
 	}
 	clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
+	clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
+	clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
 	clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
 	brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
 	if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
@@ -2535,6 +2537,8 @@  brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
 
 	clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
 	clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
+	clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &ifp->vif->sme_state);
+	clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &ifp->vif->sme_state);
 	cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL);
 
 	memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
@@ -6299,6 +6303,10 @@  brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
 				&ifp->vif->sme_state);
 			conn_params.status = WLAN_STATUS_SUCCESS;
 		} else {
+			clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS,
+				  &ifp->vif->sme_state);
+			clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS,
+				  &ifp->vif->sme_state);
 			conn_params.status = WLAN_STATUS_AUTH_TIMEOUT;
 		}
 		conn_params.links[0].bssid = profile->bssid;
@@ -6396,9 +6404,13 @@  brcmf_notify_connect_status(struct brcmf_if *ifp,
 	} else if (brcmf_is_linkdown(ifp->vif, e)) {
 		brcmf_dbg(CONN, "Linkdown\n");
 		if (!brcmf_is_ibssmode(ifp->vif) &&
-		    test_bit(BRCMF_VIF_STATUS_CONNECTED,
-			     &ifp->vif->sme_state)) {
-			if (memcmp(profile->bssid, e->addr, ETH_ALEN))
+		    (test_bit(BRCMF_VIF_STATUS_CONNECTED,
+			      &ifp->vif->sme_state) ||
+		     test_bit(BRCMF_VIF_STATUS_CONNECTING,
+			      &ifp->vif->sme_state))) {
+			if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
+				     &ifp->vif->sme_state) &&
+			    memcmp(profile->bssid, e->addr, ETH_ALEN))
 				return err;
 
 			brcmf_bss_connect_done(cfg, ndev, e, false);